Category Archives: Biology

The hidden order in DNA diffusion

The movement of DNA molecules seemingly explained by random motion conceals a more orderly march. A different approach to analyzing the motion of diffusing molecules has helped overturn the long-held…

D-Day invasion was bolstered by UW–Madison penicillin project

Seventy-three years ago Tuesday, on June 6, 1944, the D-Day invasion of Normandy was bolstered by millions of doses of a precious new substance: penicillin. On the other side of…

Stem cells yield nature’s blueprint for body’s vasculature

In the average adult human, there are an estimated 100,000 miles of capillaries, veins and arteries — the plumbing that carries life-sustaining blood to every part of the body, including…

Diverse populations make rational collective decisions

Understanding how ant colonies make collective decisions could provide insight into the functioning of the human brain. Yes/no binary decisions by individual ants can lead to a rational decision as…

Microrobots inspired by nature

A revolutionary design mimics the rowing action of the cilia on single-celled Paramecium, demonstrating much faster movement than conventional microrobots. Researchers based at South Korea’s Daegu Gyeongbuk Institute of Science…

Clues as to why cockroaches are so prolific

Asexual reproduction increases when female cockroaches are housed as a group, not alone, enabling them to maintain a colony for at least three years without a male’s contribution. Asexual reproduction…

Microbiome diversity is influenced by chance encounters

Study finds a role for randomness in the composition of the gut’s microbe populations. CAMBRIDGE, MA– Within the human digestive tract, there are trillions of bacteria, and these communities contain…

Watching gene editing at work to develop precision therapies

University of Wisconsin–Madison engineers have developed methods to observe gene editing in action, and they’re putting those capabilities to work to improve genetic engineering techniques. “Ultimately, the knowledge we gain…

A step closer to safe stem cell therapies

Stem cells derived from adult cells, called human induced pluripotent stem cells (hiPSCs), have great potential for basic research and regeneration therapies. But for clinical samples to be safe, these…

Sticking to the story at the molecular level

Molecular insight into protein net charge may explain and help solve the harmful build-up of organisms in the marine environment. A deeper understanding of protein adhesion to solid surfaces may…